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Consider the decomposition of calcium carbonate. Assume that ?H° = 177.8 kJ/mol and ?S° = 160.5 J/K·mol for the temperature range.CaCO3(s) -> CaO(s) + CO2(g)
calculate the ratio of dissolved benzoic acid to benzoate ion at equilibrium. Ka for enzoic acid is 6.46 X 10^-5
952 cm3 container of gas is exerting a pressure of 108 kpa while at a temperature of 48 degrees celsius. calculate the pressure of this same amount of gas in a 1236 cm3 at a temperature of 64 degrees celsius.
what mass of calcium carbonate is required to react with 137.8 mL of a 0.6943 M sulfuric acid solution?
The concentration of ordinary bleach is 6% w/v. How many grams of NaOCl are there in 1.00 gallon of bleach?
Calculate the concentration (in mol/L) of 30% by weight (30 g NaOH per 100 g of solution) NaOH solution. The density of the 30% by weight solution is 1.33 g/mL.
An injection containing 10.0pg 10 5 B was injected into a patient suffering from a brain tumor. The patient was irradiated by a neutron gun at the site of the tumor.
A cube of a gold with a volume of 59 cm3 has a mass of 980 g. The density of pure gold is 19.3 g/cm3. What is the percent error of the measured density?
How many grams of Na3PO4 will be needed to produce 350ml of a solution that has a concentration of Na+ ions of 0.900.
The emission spectrum of an unknown element contains two lines-one in the visible portion of spectrum and the other
The Tl in a 9.76 g sample of rodenticide was oxidized to the trivalent state and treated with an unmeasured excess of Mg/EDTA solution. The reaction is Tl3+ +MgY2-> TlY- + Mg2+
What would the change in temperature be in each change if 1 mole of an ideal gas is subjected to numerous changes in state, C= 12.47 J/Kmol.?
Mixtures of helium and oxygen are used in scuba diving tanks to help prevent the bends, which is a condition caused by nitrogen bubbles forming in the bloodstream.
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